1. Structure and features: It is made up of inner rubber layer, fabric, spiraled steel layer, middle rubber layer and outer rubber layer. It is solid and flexible. The surface is rough and spiral.

2. Types and usage: According to the different nature of the rubber medium, the hose can be divided into water suction hose, oil suction hose, wear resistant hose and chemical resistant hose etc. They are widely used in pumping and irrigation of agriculture, factory and mine, civil engineering, river construction etc.